124444319999 has 4 divisors (see below), whose sum is σ = 124446294336. Its totient is φ = 124442345664.

The previous prime is 124444319957. The next prime is 124444320001. The reversal of 124444319999 is 999913444421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999913444421 = 4513 ⋅221562917.

It is a cyclic number.

It is not a de Polignac number, because 124444319999 - 2⁸ = 124444319743 is a prime.

It is a super-2 number, since 2×124444319999² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124444319929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889394 + ... + 1019759.

It is an arithmetic number, because the mean of its divisors is an integer number (31111573584).

Almost surely, 2^124444319999 is an apocalyptic number.

124444319999 is a deficient number, since it is larger than the sum of its proper divisors (1974337).

124444319999 is an equidigital number, since it uses as much as digits as its factorization.

124444319999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974336.

The product of its digits is 10077696, while the sum is 59.

The spelling of 124444319999 in words is "one hundred twenty-four billion, four hundred forty-four million, three hundred nineteen thousand, nine hundred ninety-nine".